Key Management System

Overview

A Key Management Service for handling the cryptographic key lifecycle end-to-end — generation, rotation, revocation, and auditing — with envelope encryption used to wrap application secrets. Role-based access cleanly separates administrative operations (create/rotate/revoke) from application consumers (encrypt/decrypt/sign). Every key operation is recorded in an append-only audit log. The service is designed as a least-privilege primitive: the consumer APIs never expose master keys, and rotation is non-disruptive so dependent systems can re-wrap at their own pace.

What I learned

• Designing a least-privilege key-access model.
• Balancing auditability with throughput in a crypto-heavy service.